Bykski Durable All Metal GPU Water Block and Backplate For NVIDIA RTX PRO 5000/6000 Blackwell Server Edition (N-RTXPRO6000-SR) - Continuous Usage

Includes CNC backplate

In this gallery — tap to open full size

5.0 (2) 5.0 out of 5 stars, 2 reviews Read the reviews

N-RTXPRO6000-SR In stock in Boise, ID

$311.99USDFree shipping, lower 48

US import duties and tariffs are included in every price.

Ships the same business day on orders placed before 2:00 PM MST. Overnight delivery available at checkout.

Ships directly from our Idaho inventory. You avoid overseas sellers, processing delays, international shipping, customs hold-ups and additional fees.

Fits these 4 boards, and only these

This part is machined for the 4 boards listed below — nothing else. Board revisions and partner designs differ, so match your exact model against the list before you order.

NVIDIA NVIDIA 6000 - RTX PRO 6000 BLACKWELL SERVER EDITION
NVIDIA NVIDIA 6000 - RTX PRO 6000 BLACKWELL MAX-Q
NVIDIA NVIDIA 6000 - RTX 6000D 84G
NVIDIA NVIDIA 5000 - RTX PRO 5000 BLACKWELL

Not sure? Send us your model/part number and we'll confirm it for you.

Building your first loop? Plan the rest of it

Why buy it here

US warranty, handled in Boise

Claims are settled here, by the people who sold it to you.

Exclusive US distributor

The official US source for Bykski, so every part is genuine.

About this part

The Bykski N-RTXPRO6000-SR is a continuous-duty GPU water block with backplate for NVIDIA RTX PRO 5000 and 6000 Blackwell Server Edition cards. It covers the GPU chip, memory, and power stages in one pass.

Server workloads push cards to sustained board power where chassis airflow falls behind. This block transfers heat directly to the loop using a 9.5 mm T2 copper base with a 0.35 mm core thickness, 56 micro-channels (0.3 mm width), and electroless nickel plating to prevent corrosion.

In the box

GPU water block with backplate
Installation hardware
Thermal paste
1.5mm thermal pads

If the gallery shows a parts diagram, that diagram is the source of truth for what ships.

Datasheet

Technical specifications 21 specs

Model	N-RTXPRO6000-SR
Cold Plate Material	Nickel-Plated T2 Copper
Top Panel Material	Nickel-Plated Copper
Terminal Material	POM
Backplate Material	Black Anodized Aluminum
Base Copper Thickness	9.5 mm
Core Base Thickness	0.35 mm
Micro-Channel Width	0.3 mm
Micro-Channel Count	56
Micro-Channel Surface Area	15,565.2954 mm2
Cold Plate Length	185.6 mm
Water Block Dimensions	271.07 x 97.77 x 16.98 mm
Backplate Dimensions	188.33 x 95.49 x 3.96 mm
Port Thread	G1/4
Sealing Ring Material	EPDM
Net Weight	1.4 kg
Working Pressure	Max 4 bar
Working Temperature Range	-20C to 60C
Heat Transfer Method	Jet Flow
Supported Fluids	Water, Ethylene Glycol, Propylene Glycol, Fluorinated Fluid, Mineral Oil
Warranty	1 year

What buyers said

Left by people who bought this part here. Compatibility reports are the useful ones — if you fitted it, say which board.

It keeps the rtx pro very cool

Using the stock cooler i was consistently in the 80s and sometimes 90s if run at stock speed. With the waterblock, it's consistently in the mids 60s on the hottest days and on cool days it's in the 50s at 100% GPU utilization.

Great Block - Not Singe Slot

Ordered 6 of these, slabbed the cards and then realized these are not single slot water blocks. ¯\_(ツ)_/¯

The tolerances are not tight enough -Even replacing the back plate screws with Ultra Low-Profile screws from Mishmi with 0.5 MM heads - still to thick.

A 5 star rating since they are Great Blocks to use if you don't need single slot!

What installing it actually involves

Three steps, in the order that matters. The one people get wrong is the first.

Confirm the hardware

This block fits 4 boards:

NVIDIA NVIDIA 6000 - RTX PRO 6000 BLACKWELL SERVER EDITION
NVIDIA NVIDIA 6000 - RTX PRO 6000 BLACKWELL MAX-Q
NVIDIA NVIDIA 6000 - RTX 6000D 84G
NVIDIA NVIDIA 5000 - RTX PRO 5000 BLACKWELL

Match your exact model — not the family.

Mount it dry

Thermal interface material as supplied. Even mounting pressure, correct bracket orientation, no over-torquing.

Leak test before power

Run the pump on a bench supply with the rest of the system unpowered. 24 hours is the standard, an hour is the minimum.

Custom water cooling is installed by you, at your own risk. We are not responsible for leaks, or for damage to your parts or system. If you're unsure at any step, ask before you power the loop.

Questions people ask about this part

Answers specific to N-RTXPRO6000-SR. If yours isn't here, ask — we'd rather talk you out of the wrong part than sell you one.

What does this part fit?

It is machined for 4 boards:

NVIDIA NVIDIA 6000 - RTX PRO 6000 BLACKWELL SERVER EDITION
NVIDIA NVIDIA 6000 - RTX PRO 6000 BLACKWELL MAX-Q
NVIDIA NVIDIA 6000 - RTX 6000D 84G
NVIDIA NVIDIA 5000 - RTX PRO 5000 BLACKWELL

Bykski cut these to a specific hardware layout, so match your exact model rather than the family before ordering. Part number N-RTXPRO6000-SR.

Is it in stock, and when will it ship?

Yes — in stock in Boise, Idaho. Orders placed before 2:00 PM MST on a business day ship the same day — we do not ship weekends or US holidays. Overnight delivery is available at checkout.

Can I return it if it turns out not to fit?

Yes. Returns are accepted within 30 days and are easy to start in the support center. Unopened items can be returned for store credit with no restocking fee; other returns carry a restocking fee, higher for items that have been installed or used. So we would rather check the fit with you first: send us the model and we will check it against this part.

Will I pay import duties or customs charges on delivery?

Not on a US order. US import duties and tariffs are already included in the price, so nothing is collected at the door and there is no brokerage fee. Orders shipped outside the US may owe that country's customs fees and duties.

Who handles the warranty?

BYKSKI.US, the exclusive US distributor, from Boise, Idaho. Claims are handled domestically rather than returned to an overseas factory. Installation is at your own risk: we are not responsible for leaks or damage to other hardware.

Is shipping free?

Yes — shipping is included at this price for addresses in the lower 48 US states.

Are printed instructions included?

No printed manual is included. Installation references are in the product gallery images, and the install guides on this site cover the process step by step.

Do I need anything else to use it?

A water block is one component of a loop: you also need a pump, a radiator, fittings, tubing and coolant. If you are starting from nothing, an AIO or a distro-plate kit is the shorter route — ask and we will spec it.

Ask us before you order

Send your exact hardware model and we'll confirm the right part before you spend $311.99 — or tell you honestly that this isn't the one.

Returns are accepted within 30 days and are easy to start in the support center. Unopened items can be returned for store credit with no restocking fee; other returns carry a restocking fee, higher for items that have been installed or used.

Ask about compatibility